2 sec in total
435 ms
1.3 sec
299 ms
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Science Lab Supplies - Educational Laboratory Scientific Supplies & Equipment
Visit sciencelabsupplies.comWe analyzed Sciencelabsupplies.com page load time and found that the first response time was 435 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
sciencelabsupplies.com performance score
name
value
score
weighting
Value5.7 s
5/100
10%
Value8.2 s
2/100
25%
Value5.8 s
50/100
10%
Value80 ms
99/100
30%
Value0
100/100
15%
Value5.9 s
65/100
10%
435 ms
25 ms
54 ms
44 ms
46 ms
Our browser made a total of 31 requests to load all elements on the main page. We found that 94% of them (29 requests) were addressed to the original Sciencelabsupplies.com, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (435 ms) belongs to the original domain Sciencelabsupplies.com.
Page size can be reduced by 485.4 kB (73%)
663.2 kB
177.8 kB
In fact, the total size of Sciencelabsupplies.com main page is 663.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Javascripts take 337.6 kB which makes up the majority of the site volume.
Potential reduce by 112.9 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 24.9 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 112.9 kB or 87% of the original size.
Potential reduce by 0 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Science Lab Supplies images are well optimized though.
Potential reduce by 241.3 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 241.3 kB or 71% of the original size.
Potential reduce by 131.2 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Sciencelabsupplies.com needs all CSS files to be minified and compressed as it can save up to 131.2 kB or 84% of the original size.
Number of requests can be reduced by 21 (70%)
30
9
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Lab Supplies. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.
www.sciencelabsupplies.com
435 ms
jquery.ui.theme.css
25 ms
main.css
54 ms
main.GC.css
44 ms
jquery.cluetip.css
46 ms
main.css
45 ms
main.css
45 ms
main.css
47 ms
main.css
70 ms
main.css
72 ms
main.css
69 ms
main.css
70 ms
main.css
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71 ms
main.css
87 ms
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88 ms
main.css
89 ms
main.css
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main.css
89 ms
altskin.css
92 ms
_851472079b5f5f93813902ebf44c880b.js
207 ms
func.js
104 ms
func.js
104 ms
bg-texture.gif
23 ms
DigitalCatalogFlippingImage_2014.gif
172 ms
button_search.gif
42 ms
spacer.gif
42 ms
plus_minus.gif
67 ms
header.jpg
73 ms
ga.js
5 ms
__utm.gif
14 ms
sciencelabsupplies.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
sciencelabsupplies.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
sciencelabsupplies.com SEO score
EN
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencelabsupplies.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sciencelabsupplies.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
sciencelabsupplies.com
Open Graph description is not detected on the main page of Science Lab Supplies. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: